Rotary engine.



No. 999,995. PATENTED JUNE 9, 1909.

J. B. WALKER.

' ROTARY ENGINE.

APPLICATION FILED MAY 23 1906.

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No. 889,995. PA'TENTED JUNE 9,1908

' J. B. WALKER.

ROTARY, ENGINE. APPLIGATIOK FILED MAY 23, 1906 2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

JOHN B. WALKER, OF PUNXSUTAWNEY, PENNSYLVANIA.

ROTARY ENGINE.

Application filed May 23,- 1906.

To all whom it may concern:

Be it known that I, JOHN B. WALKER, a citizen of the United States, and a resident of Punxsutawney, in the county of Jefferson and State of Pennsylvania, have invented a new and useful Improvement in Rotary Engines and Pumps, of which the following is a specification.

My invention relates to that class of rotary engines or pumps consisting of a cylinder and head in one piece. The other head is conneoted to the cylinder with screw bolts. There is a running-head inside and eccentric with the cylinder, and ournaled in both heads of the cylinder, and wings hinged on a wrist-pin at the center of the cylinder, and projecting through slots in the running-head that are provided with oscillating bearings revolving in close contact with the interior of the cylinder without frictional contact therewith. The head of the cylinder can be removed to examine the interior without displacing any of the working mechanism which overcomes a great disadvantage in other rotary engines.

My device is illustrated in the accompanying drawings, in which Figure l is a top view looking down on top of the entire engine showing the pipe connections, and the reverse valves, and the rod that connects the valve levers. Fig. 2, a view of the reverse valve plugs removed from the shell of the valve. Fig. 3, a longitudinal section through the center. Fig. 4, a detail View inside the cylinder with the head of cylinder removed, and the plate 31 removed from the running-head. Fig. 5, is the head of the cylinder. Fig. 6, is the same view as Fig. 4, only at 45 degrees. Fig. 7, parts removed from the engine.

In the different figures the same numbers are used to indicate the same parts.

1 is the rod that connects the levers 2 which operate the valve plugs 5 in the body or casing 3. Each valve or casing has three ports.

36 are induction ports and connect with the main feed line at 4.

35 are induction and eduction ports and interchange as the engine is reversed. The ports 6 are eduction ports one acting at a time and interchange as the engine is reversed.

8 indicates the base which has a cylinder 9 mounted thereon, and two supports 11 and 12 mounted on a raised portion of it. In the Specification of Letters Patent.

Patented June 9, 1908.

Serial No. 318,421.

cylinder 9 eccentric with the cylinder but concentric with the running-head is situated the outside portion of an adjustable taper bearing 18, which is adjusted from the outside of the cylinder. The cylinder has a depression at bottom and at'both ends to receive the running-head 26.

10 is the head of cylinder 9, and is secured to it with screw bolts 33.

11 is a support for the driving shaft and is supplied with the outside portion of an adjustable taper bearing 18.

12 is a support for the stationary shaft 13. The shaft 13 is journaled to fit the driving shaft 24 which is hollow and the shaft 13 is smaller inside the hollow shaft 24 to reduce friction, and is lubricated from an oil-cup 22 (en shaft 24. Shaft 13 has a crank at each on 14 is the crank that connects with the bolt 15 that holds it secure to the base 8. Bolt 15 operates in a slot in the base 8 to allow a lateral adjustment.

27 at the other end of shaft 13 and inside the running-head 26, extends from the center of the running-head to the center of the cylinder, and is there provided with a fixed wrist-pin 28 which extends through the running-head 26 to the head of the cylinder 10, and is adapted to receive and form a fixed center for the Wings 01' valves 29 of which one end is journaled thereon, and shaft 13 is threaded at the end and provided with nuts 16 one on each side of support 12 and made secure to overcome the wear it might otherwise have on the working parts. A stuffing-box 17 is provided at the end of shaft 24 where shaft 13 passes through. The adjustable taper bearings 18, one in cylinder 9 the other in su port 11, adjusting in opposite directions t.lie up the wear and hold the shaft 24 and the running-head in its proper center.

19 is a key that holds the inside of the bearing 18 on the shaft 24.

20 is the adjustment of bearings 18.

21 is the belt or drive wheel on shaft 24 between the cylinder 9 and support 11. It is of the ordinary type and is secured by a key 23.

22 are lubricators which furnish oil to the different parts.

24 is the driving shaft and is cylindrically hollow to allow shaft 13 to pass through it as hereinbefore stated, and has a stuffing box 17 at one end. The other end of shaft 24 is journaled in the running-head 26, which-has the insidepart of one of the bearings 18 formed thereon and made secure by a screw 25.

26 the running-head is smaller than the cylinder and set eccentric and journaled therein, in the depressions in cylinder 9 and head 10 as hereinbefore stated, and has slots through each quarter of the running-head 26. And 27 is the crank which the wrist-pin is situated on at the center of the cylinder 9 and forms a firm center bearing. One end of the wings or valves 29 are journaled thereon, the other end extends through slots in the oscillating bearings 30 which are journaled their full length in the slots at each quarter of the running-head 26. The bearings are of greater length and diameter than the slots in the running-head to form better walls for them to be j ournaled in. The slots in the bearings 30 are of less diameter than those in the running-head 26 to provide for the oscillating motion of the wings or valves 29.

31 is a plate adapted to fit a depression in the end of the running-head 26 and made secure by screws, and 1ts purpose is to strengthen the head 26 and to hold the bearings 30 in place.

32 is a band that clamps the packing securely in a depression around the exterior of the cylinder 9.

33 are screw bolts for the purpose of securing the cylinder-head 10 to the cylinder 9.

34 is the space between the running-head 26 and the cylinder 9 in which the steam or power travels.

By the description it will be seen that this engine will run with any power either steam compressed air or water, and will pump water or make a force blower equally satisfactory.

I do not wish to limit my invention to the precise details herein set forth and shown in the drawings, as it is obvious thesefeatures may be varied without departing from the principle of my invention.

I am aware that rotary engines were invented prior to my invention, therefore I do not claim such a combination broadly, but

I claim 1. In a rotary engine the driving shaft running in adjustable taper bearings and cylindrically hollow sufficient to have ournaled therein a fixed shaft and supplied with a stuffing box substantially as shown and described.

2. In a rotary engine, a fixed shaft journaled through the running shaft, with a crank at the end to hold it in a fixed position,-

and a crank at the other end with a wrist-pin in it at the cehter of the cylinder, said pin being adapted to have j ournaled thereon the wings or valves, substantially as shown and described.

3. In a rotary engine, the fixed shaft threaded at one end and projecting through 

